'''sandwich_order=['apple','banana','lizhi']
finished_sandwich=[]
for x  in sandwich_order:
    finished_sandwich.append(x)
    print('I made your tuna sandwich')
print(finished_sandwich)'''

sandwich_order=['apple','zx','banana','lizhi','zx','zx','zx']
finished_sandwich=[]
for x  in sandwich_order:
    finished_sandwich.append(x)
    print('I made your tuna sandwich')
print(finished_sandwich)

while 'zx' in finished_sandwich:
    finished_sandwich.remove('zx')
print(finished_sandwich)
